宁波舟山港鼠浪湖岛建港水文条件研究

Harbor hydrologic characteristics of Shulanghu Island,Ninbo Zhoushan Port

鼠浪湖岛海域处于杭州湾外海,岸线地形和水流波浪动力环境复杂。为研究鼠浪湖岛及周边岛屿的建港条件,基于现场实测资料及海图、卫片资料,首先对海域的水沙动力环境及岸滩稳定性进行分析。在此基础上,通过波浪数学模型、潮流泥沙数学模型研究工程海域的波浪场分布、流场特征和规划方案的波浪要素、水流条件和泥沙淤积情况。结合海域的动力泥沙环境特征,从水动力泥沙条件角度对方案的总体布置思路、不同岸段的建港条件等进行分析总结,为规划方案的确定和深化研究提供依据和技术支撑,也为类似复杂岸线地形和动力环境下码头方案的布置确定提供参考。

Shulanghu Island is located in the offshore of Hangzhou Bay.The coastline topography is intricate and the wave and current hydrodynamic conditions are complicated.In order to study the conditions for deepwater port construction,we use the field data,nautical charts and remote sensing satellite data around the island to analyze the characteristics of the hydrodynamic environment and beach evolution.Based on that,mathematical model of wave transformation in the nearshore region and 2-D tidal current and sediment mathematical model are applied to calculate wave fields and tidal flow fields in the area,as well as the design wave factor,flow conditions and sediment deposition of the planning scheme.Based on the characteristics of the hydrodynamic and sediment environment in the area,we analyze and summarize the general layout of the scheme and the conditions of harbor construction in different bank sections from the viewpoint of hydrodynamic and sediment conditions.The conclusion can provide the basis and technical support for the determination and further study of the planning scheme,and also provide a reference for the layout of wharf schemes under similar complex coastline topography and dynamic environment.